Will git fetch with "--prune"

(temporarily disabling any operations to anex as it's currently not
replicated)

Try not to loose data when REST requests fail

[ES] More accurate as_indexed_json

fixes https://gitlab.com/gitlab-org/gitlab-ee/issues/349

It makes database indexer stable to corrupted data in database.

/cc @jnijhof 

See merge request !244

More ES specs



See merge request !239

Fix ES documentation

@axil Since we changed default behaviour (https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/209) we need to update doc.

See merge request !243

[ci skip]

Add `gitlab:elastic:index` task that rolls up all other index tasks

Also improves consistency of the task descriptions.

See merge request !240

Move EE-specific factories to their own files



See merge request !242

[ci skip]

Also improves consistency of the task descriptions.

Fix search by iid when Elasticsearch is enabled

Closes #350 

See merge request !238

CE upstream



See merge request !235